Hey smart engine guys... can you help me?

The old myth of the big block feeling nose heavy was due more to the tires and shocks of the day. My son's 440/4sp Dart convertible (factory big block torsion bars and sway bar) actually feels firmer and more stable on the road than my 68 340 GTS convertible (not much done to improve it). We've autocrossed my other son's 67 383 Barracuda. Also a 340 car with air, power steering, and power brakes is about as heavy (maybe heavier) in the nose as a big block car with manual everything.